Exercise machine frame



FIG. 1 is a perspective view of an exercise machine frame according to the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a front view thereof, rotated ninety degrees relative to FIG. 2;

FIG. 4 is a back view thereof, rotated ninety degrees relative to FIG. 2;

FIG. 5 is a bottom view thereof, rotated ninety degrees relative to FIG. 2; and,

FIG. 6 is a top view thereof, rotated ninety degrees relative to FIG. 2.

The broken line showing of portions of the exercise machine frame depicts environment and forms no part of the claim. 

CLAIM The ornamental design for an exercise machine frame, substantially as shown and described. 